The invention discloses an ecological soil conditioner and belongs to the technical field of soil conditioners. The ecological soil conditioner is prepared from the following raw materials in parts byweight: 10 to 30 parts of biological straw, 5 to 15 parts of humic acid, 10 to 20 parts of ammonia fertilizer, 10 to 20 parts of perlite powder, 10 to 20 parts of phosphate rock powder, 5 to 15 partsof livestock excrement, 5 to 15 parts of peanut cake fertilizer, 10 to 20 parts of sodium lignosulphonate and 10 to 20 parts of medical stone powder. The ecological soil conditioner disclosed by theinvention can be used for promoting the growth of crops, enhancing the resistance of the crops, improving a soil structure of a sand land, increasing basic nutrients, stimulating the growth of the crops and improving the disease-resisting, drought-resisting and cold-resisting capabilities and has very good economic value and social value.